feat: add dockerfile

Dockerfile

@@ -0,0 +1,20 @@
+FROM docker.io/library/node:slim
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates \
+    curl \
+    git \
+    gnupg \
+    && rm -rf /var/lib/apt/lists/*
+
+ENV PNPM_HOME="/pnpm"
+ENV PATH="$PNPM_HOME:$PATH"
+RUN corepack enable
+WORKDIR /builder
+
+COPY package.json /builder/package.json
+COPY pnpm-lock.yaml /builder/pnpm-lock.yaml
+RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm install --frozen-lockfile
+
+COPY . /builder
+RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm run build